People aged 70 and over who identify themselves as 'old' feel worse about their own health in societies where they perceive they have lower value than younger age groups.

New research from psychologists at the University of Kent, titled 'Being old and ill' across different countries: social status, age identification and older people's subjective health, used data from the European Social Survey. Respondents, who were all aged 70 and over, were asked to self-rate their health.

Researchers at Rice University have synthesized a recently discovered natural fungus-derived  antibiotic, viridicatumtoxin B, which may shelp bolster the fight against bacteria that evolve resistance to treatments in hospitals and clinics around the world.  

The work reported this month in the Journal of the American Chemical Society (JACS) focused on a tetracycline discovered in 2008 by scientists who isolated small amounts from penicillium fungi. The yield wasn't nearly enough for extensive testing, but it provided a basis for the discoverers to analyze its structure through magnetic resonance imaging. 

In 1934, American archaeologist Nelson Glueck named one of the largest known copper production sites of the Levant, located deep in Israel's Arava Valley, "Slaves' Hill."

This hilltop station seemed to bear all the marks of an Iron Age slave camp – fiery furnaces, harsh desert conditions, and a massive barrier preventing escape, but new evidence uncovered by Tel Aviv University archaeologists overturns that narrative and says the people there were instead highly regarded craftsmen rather than slaves.

Human articular cartilage defects can be treated with nasal septum cells because they are able to adapt to the environment of the knee joint and can thus repair articular cartilage defects. 

The nasal cartilage cells' ability to self-renew and adapt to the joint environment is associated with the expression of so-called HOX genes. The scientific journal Science Translational Medicine has published the research results together with the report of the first treated patients.

Astronomers have caught a glimpse of the earliest stages of massive galaxy construction - a dense galactic core blazing with the light of millions of newborn stars that are forming at a ferocious rate.

A fully developed elliptical galaxy is a gas-deficient gathering of ancient stars theorized to develop from the inside out, with a compact core marking its beginnings. Because the galactic core is so far away, the light of the forming galaxy that is observable from Earth was actually created 11 billion years ago, just 3 billion years after the Big Bang.

Xenon gas is commonly used for diagnostic inhalation because of its anesthetic properties but more recently it has been used by the Russians to cheat in the Olympics, and the cycling community has followed suit, because of its EPO - Erythropoietin - hormone producton ability.

It may also be a treatment for post-traumatic stress disorder (PTSD) and other memory-related disorders, according to a new paper in PLOS One.